Hyjal (as zone in cata) got great music, i think same is in "new" ashenvale. Other than that i like music inHowling Fjord,Dalaran, as well as goblin theme so i sometimes put on music in goblins areas. Music in blood elves zone is also something that i enjoy alot as well. Alot of things can be said about wow but not that it got bad music imo